INA bearing installation and disassembly analysis technique

The installation method of INA bearings INA bearings: INA bearing installation is correct, affects the precision, life and performance. Therefore, design and installation of assembly department for INA bearing to fully research. Hope to work in accordance with the standards for installation. Operation standard project usually is as follows: ( 1) Cleaning INA bearings and INA bearings associated parts; ( 2) Check the size of the associated components and finish machining condition; ( 3) Installation; ( 4) After installed the INA bearing inspection; ( 5) Supply of lubricant. Hope before the installation, just open the INA bearing packing. General grease lubrication, cleaning, not directly fill grease. Lubricating oil, ordinary also don't have to be clean, but the instrument with or high speed with INA bearings, etc. , to be washed with clean oil, remove rust inhibitor on INA bearings. Remove the rust inhibitor INA bearing, easy to rust, so can't place. Also, has the INA bearing grease sealed, not directly use cleaning. INA bearing installation method, because the INA bearing structure, cooperate, conditions vary, in general, as more as the axis of rotation, so the inner ring need interference fit. INA bearings, cylindrical hole is multi-purpose the pressure into the press and or multi-purpose hot charging method. Taper hole, installed directly on the taper shaft, or use the socket installation. When installed on the shell, clearance fit more commonly, outer ring have surplus quantity, usually use the pressure into the press and or have shrink fit method of cooling after installation. Use dry ice as coolant, shrink fit installation, the moisture in the air condenses on the surface of INA bearings. So, need a good rust prevention measures. INA bearings remove skills of INA bearings remove and install the same carefully. Careful not to damage the INA bearing and various parts, especially interference fit INA bearing down, and the operation is difficult. So, in the design stage to consider in advance to facilitate disassembly, designed and manufactured according to need remove the tools is also very important. When disassembling, according to the drawings the disassembly method, sequence, cooperate condition survey of INA bearings, foolproof for disassembly operations. 1, the outer ring of the removal of removal of interference fit of the outer ring, beforehand in setting several outer shell on the circumference of a circle of extrusion screw with screws, one side equal to tighten the screw, remove. The screw hole cover usual blind plug, the separation of tapered roller bearing type INA bearings, shoulders set several incisions in the shell, using block, remove by press, or tap the disassembly. 2, remove the inner ring of the remove of cylindrical hole bearing, can use simple mechanical pull out the latest pressure. At this time, must pay attention to the inner ring under the pulling force. Large INA bearing inner ring remove oil pressure method is used. By setting on the axis of hydraulic oil hole, in order to make easy to pull out. Width of INA bearings, oil pressure method and drawing fixture and disassembly operations. NU, NJ cylindrical roller bearing inner ring remove can take advantage of the induction heating method. In a short time heating the local, make the inner ring expansion after drawing method. 3, remove the removal of relatively small band of taper hole bearing set set of INA bearings, with fastening on the shaft gear support inner ring, the nuts back a few times, use the block with a hammer beating the disassembly. Large INA bearing, using the hydraulic remove easier, in the oil hole on the shaft taper hole pressure oil, make the inner ring expansion, remove the INA bearing method. Operation, the possibility of INA bearings suddenly emerge, it is best to nut used as gear block as well.